Breeding ages

I know this may seem like a dumb question, but I forgot, sorry-

But horses can still be bred at 20 right? Both mare and stallion?

From the help page:

"3) Make sure the mare and stallion are old or young enough (from ages 3-20) to breed."

So the last breeding possibility is one day before a horse turns 21 year old. If you miss it you can always use a credit item to rewind its age by 7 days but it's relatively costly.

I just realized I was looking at a completely wrong horse and couldn't figure it out, but now I know. I always thought the help page said 21 for some reason.

Thanks anyways! ♥